Electric-socket structure



April 2l, 1925.

\ M. HERSKOVITZ ELECTRIC SOCKET STRUCTURE Filed April 28,

Patented-Alpi'. 2l, 11925.

UNITED VSTATES PATENT OFFICE.

m mSXOVITZ, OF CHIUAGCLILLINOIS, .AB'SIGNOB T0 PEERLESS LIGHT COIYANY,OF CHICAGO, ILLINOIS, A. CORPORATION OF MAINE.

ELECTRIC-SOCKET STRUCTURE.

appnmm ma April 2s, 1920. serial no. avana.

vTo all whom it may concern.' n

Be 1t known that I, MAX. Hlcnsxovrrz. a citizen of the United States,residing at Chicago, in the' county of Cook and vState of in the case ofso-called candle-sockets; and

as to another feature thereof, to electric sockets in general whether,or not, adapted to be used as parts of socket-structures of thecharacter above stated.

One of my objects is toprovide a novel, .simple and inexpensiveconstruction of electric-socket of the character above stated. Anotherobject is to provide a novel, simple and inexpensive construction ofsocket for usein general and to which current-conducting wires forsupplying current to the socket, may be economically and readily at'tached.

Referring to the accompanying drawings Figure 1- is a view in sideelevation of an electric-socket constructed in accordance with myinvention and adapted to form a portion of an electric candle-socketstructure. Figure 2 is a similar view taken at a right angle thereof.Figure 3 lis asection taken at the line 3 on Fig. 1 and viewed in thedirection ofthe arrows. Figure 4 is a perspective view of one ofthecurrent-conducting elements forming parts of the socket. Figure 5 is anenlarged section taken at the line 5--5 on Fig. 1 and viewed in thedirection of the arrow. Figure 6 is a similar View taken at the line 6-6on Fig. 2 and viewed in the direction of the arrow. Figure 7 is a brokensection taken. at the line 7 on Fig 6 and viewed in the direction of thearrow.

Figure 8 is a view like Fig. 5, of another Ito 7 inclusive, the socketis formed of a shell 8 which is made preferably of insulating material,such, for (-xample, as paper board or fiber board, or any otherdesirable material, provided in the form of a tube, shown as open at itsopposite ends and into one end of whlch the screw-shell'of the socket,represented at 9 and provided to receivev the screw-plug of anincandescent electric lamp, 00 and form one of the contacts of thesocket,

is shown to extend, the shell 9 preferably extending slightly short ofthe end of the shell 8. The shell 9 is provided at its inner end-with adisk 10 of insulating material 65 carrying a center-contact 11 shown asformed of a plate 12 bent to present a contact-making. portion 13, theplate 12 being held to the disk 10, as by a metal evelet 14 extendingthrough these parts. electrically connected therewith, as by soldering,one end ofa metal current-conducting element 15 of strip form, whichextends along the iinside of the shell 8 and is equipped at its oppositeend with abinding- -screw 16. A similar current-conducting elementrepresented at 17, connects at its inner, reduced, end 18,'w1th thecenter-contact 11, as by solderlng i`t in the opening in the eyelet 14,this element extending'along the in- 90 side of the shell 8 and beingprovided at its outer end with a binding-screw 19. In ac; cordance withthe illustrated embodiment of my invention, the shell 8 is slit asindicated at-20, at opposite sides thereof circumferen- 35 tially, andthe material bet-Ween these slits and the lowerend of the shell inwardlybuckled, as represented at 21, the lower,

ybinding-screw-equipped, ends of the elements 15 and 17 extending intothe spaces 90 nevertheless rendered readily accessible for theattachment thereto of electric-currentconducting wires leading from anysuitable source of electric-current supply. The parts described arepreferably assembled to the positions shown and described by attachingthe elements 15 and 17 to the screw part of the shell 9 and thecenter-contact 11, respectively, and these parts so assembled, assembledAwith the shell 8 to cause them to be surrounded by the latter. With thepart-s 105 of the structure thus assembled, cement, represented at 22,and of any suitable character non-conductive of electric current, as forexample the cement used in the wiring of electric chandeliers is pouredinto the end 11 The shell 9 has 70 of the shell 8 opposite that intowhich the screw-shell 9 extends, to fill this end of the shell 8, asshown, thereby firmly cementing parts described, in assembled would besupported in use las by screwing.-

it u on the threaded nipple usually provided in e ectric fixtures of theelectric candle type. The frame 28 is referably made of metal and theupper en s of the arms thereof are formed with tongues 30 formed byslitting the metal of these arms. The upper ends ,of the arms referredto extend upwardly into the interior of the shell 8 along the side wallsof the latter, these portions of the arms being preferably curved asshown in Fig.`

7, and the tongues 30 are bent outwardly, thence upwardly and at theirupper extremities, inwardly, to extend into openings 31 in the shell 8,the material of this shell between the openings 31 and the lower edge ythereof being preferably closely` embraced by these tongues as shown.

It will be understood that in formin the socket shown the yoke-member 28wo d be assembled with the shell 8, as stated, before the cement 22 isintroduced into the shell, thereby also cementing the upper ends of thearms of the oke 28 in position, and firmly anchoring them in place, theshaping of the arms at their upper ends as stated, enhancing theanchoring e'ect.

The feature of connecting the frame 28 with the socket structure, asdescribed, causes the structure to be ver rigid and possess a highdegree of durabi ity at relatively low cost.

It will be understood that in so far as the yoke feature 28 of thestructure is concerned, 1t may be employed in sockets intended for useotherwise than as candle-sockets, in which case the yoke 28 whichwouldprobably be somewhat shorter, would form the support for the socketwhether the socket extends in the upright position shown or is inverted,orV extends at an angle to the vertical.

Figure 8 is illustrative of another of the various forms in which theinvention may be provided, the structure shown being of a'form morenearly resembling the ordinary form of socket in that it is vformed witha metal enclosing casing. In this construction, the internal lparts areshown as of the same construction as those shown in Fi 5 and the samenumerals are used to esignate the several parts. The metal casinreferred to is represented at 32, it being ormed of two telescopingsections 33 and 34, -the section 33 carrying the internal parts referredto and the section 34, which may be threaded as indicated at 35 forattachment to a. support, forming a cap1portion. end of .the section 33is of enlarged diameter as shown at 36 and in the assembling of the saidinternal parts therewith, 4the cement 22 not only cements the variousinternal parts in position, but also, by extending between the shell 8and the section 33, as shown, rigidlycements the casing 33 to the shell8.

It may be here stated that by constructing a socket member as abovedescribed, it may be made very economically and possesses a high degreeof durability and strength, the invention thereby providin a socketvconstruction which may be use in many situations where much` moreexpensive constructions of sockets are now required to beguseda While Ihave illustrated and described certain constructions embodying myinvention, I do not wish to be understood as intending to limit itthereto as the same ma be variousl modified and. altered Without ,dearting fiomthe spirit' of the invention. at I claim as new and desire tosecure by Letters Patent isg' 1. In an electric socket, the combinationof a shell of insulating material, electrical contacts,current-conducting elements in said shell connected with said contacts,respectively, the end of said shell being slit, with the portionsthereof adjacent to said slits being inwardly buckled, the ends of saidcurrent-conducting elements o posite those connected with said contacts@ein located within saidbuckled portions, mol able material,non-conductive of electric current, and having the property of settinlocated in the end of said shell opposite t at adjacent said contacts,and in which said current-conducting elements are embedded, and deviceson the ends of said current-conducting elements opposite those connectedwith said contacts positioned to be accessible at the buckled portionsof said shell for at- 110 -taching electric-current-conducting wirestheret 2. InV an electric socket, the combinationv of a shell ofinsulating material, a screw shell extending into one. end 'of saidlirst- 115 named shell and presenting a side contact and a centercontact, current-conducting elements connected with said contacts,respectivel the end of said first-named shell being sht] with theportions of this shell 120 material non-conductive of electric current,125

and having the property of setting, located in the other end of the tubeand in which said current-conductin elements are imbedded, and deviceson t e ends of said currentconducting elements opposite those con- 13The lower' nected with said elements and positioned to be accessible atthe buckled portions of' said first-named shell for attachingcurrent-conducting wires to said elements. v

3. In a socket structure, .the combination of a shell and a supportingmember having arms which extend upwardly into overlapping positionrelative to said shell, with tongues on said armsibent outwardly andthence upwardly into clamping engagement with said shell.

4. In a socket structure, the combination of a shell and a supportingmember having arms which extend upwardly into overlapping positionrelative to said shell, with tongues bent outwardly and upwardly to iextend at their lower portions below the llwer edge of said shell, andclamping said s ell.

5. In a socket structure, the combination of a shell and a supportingmember having arms which extend upwardly into overlapping positionrelative to said shell, with tongues bent outwardly, thence upwardly andthence inwardly to extend into openings in said shell, said tonguesclamping said shell. I

6. In a socket structure, the combination of a screw shell and a centercontact, a second shell in which said screw shell and center contact arepositioned, a supporting screw shell land said center. contact,respectively, located within said second shell, and moldable material,non-conductive of electric current and having the property of setting,located in the end of the shell opposite that occupied by said'screwshell and contacting with said arms, `with said elements and with saidscrew shell and rigidly holding these parts in assembled relation, saidelectric current-conducting elements projecting through said moldablematerial.

7. In a socket structure, the combination of a shell, electricalcontacts, a supporting member having arms which extend upwardly intosaid shell, the upper ends of said arms being of a cross-sectional formother than flat, electric-current-conducting elements connectedrespectively with said contacts and located within said shell, andmoldable material, non-conductive of electric current, and having theproperty of setting, located in said shell and imbedding the upper endsof said arms and said current-conducting elements and holding theseparts and said contacts in rigid relation to said shell.

MAX HERSKOVITZ.

